One AP Operation Status is down

[interfacedy]

Hi One AP c9130 Operation Status is down though Admin Status is up. This AP has same tag as other AP in c9800 wlc system. Anyone can take a look at below screenshot?

[marce1000 · Accepted solution]

 - Reboot the AP , and issue show logging on it just after it has booted, you may get useful info's

 M.

[saravlak]

its showing speed 100mbps - any chance this AP connected to a different switch than other APs.

https://www.cisco.com/c/en/us/products/collateral/wireless/catalyst-9100ax-access-points/deployment-guide-c07-743490.html#PoweroverEthernetPoE

[interfacedy]

Hi Marce1000,

the below is log got from the AP when it reboot. Looks like the AP is disconnected with antenna(no antenna). Not sure this is reason. 

ssid. and no any ssid signal can be seen from this AP. 

[*05/08/2021 23:22:10.0005]
[*05/08/2021 23:22:10.0005] CAPWAP State: DTLS Setup
[*05/08/2021 23:22:10.6250] First connect to vWLC, accept vWLC by default
[*05/08/2021 23:22:10.6250]
[*05/08/2021 23:22:10.6452]
[*05/08/2021 23:22:10.6452] CAPWAP State: Join
[*05/08/2021 23:22:10.6752] Sending Join request to 10.0.100.97 through port 5256
[*05/08/2021 23:22:10.6795] Join Response from 10.0.100.97
[*05/08/2021 23:22:10.6796] AC accepted join request with result code: 0
[*05/08/2021 23:22:10.6922] Received wlcType 0, timer 30
[*05/08/2021 23:22:10.7572]
[*05/08/2021 23:22:10.7572] CAPWAP State: Image Data
[*05/08/2021 23:22:10.7575] AP image version 17.5.1.12 backup 8.10.130.0, Controller 17.5.1.12
[*05/08/2021 23:22:10.7576] Version is the same, do not need update.
[*05/08/2021 23:22:10.8041] status 'upgrade.sh: Script called with args:[NO_UPGRADE]'
[*05/08/2021 23:22:10.8421] do NO_UPGRADE, part2 is active part
[*05/08/2021 23:22:10.8542]
[*05/08/2021 23:22:10.8542] CAPWAP State: Configure
[*05/08/2021 23:22:11.2606] Radio [2] Admininstrative state DISABLED change to DISABLED
[*05/08/2021 23:22:11.2627] Radio [1] Admininstrative state DISABLED change to ENABLED
[*05/08/2021 23:22:11.2637] Radio [0] Admininstrative state DISABLED change to ENABLED
[*05/08/2021 23:22:11.3787] DOT11_CFG[1]: Starting radio 1
[*05/08/2021 23:22:11.3793] DOT11_DRV[1]: Start Radio1 - Begin
[*05/08/2021 23:22:11.3812] DOT11_DRV[1]: Start Radio1 - End
[*05/08/2021 23:22:11.4047] DOT11_CFG[0]: Starting radio 0
[*05/08/2021 23:22:11.4053] DOT11_DRV[0]: Start Radio0 - Begin
[*05/08/2021 23:22:11.4068] DOT11_DRV[0]: Start Radio0 - End
[*05/08/2021 23:22:11.4316] DOT11_DRV[1]: Stop Radio1 - Begin
[*05/08/2021 23:22:11.4360] DOT11_DRV[1]: Stop Radio1 - End
[*05/08/2021 23:22:11.4367] DOT11_DRV[0]: Stop Radio0 - Begin
[*05/08/2021 23:22:11.4413] DOT11_DRV[0]: Stop Radio0 - End
[*05/08/2021 23:22:11.5745] DOT11_CFG[1]: Starting radio 1
[*05/08/2021 23:22:11.5750] DOT11_DRV[1]: Start Radio1 - Begin
[*05/08/2021 23:22:11.6909] DOT11_DRV[1]: Start Radio1 - End
[*05/08/2021 23:22:11.7122] DOT11_CFG[0]: Starting radio 0
[*05/08/2021 23:22:11.7127] DOT11_DRV[0]: Start Radio0 - Begin
[*05/08/2021 23:22:11.8009] DOT11_DRV[0]: Start Radio0 - End
[*05/08/2021 23:22:11.8522] DOT11_DRV[1]: Stop Radio1 - Begin
[*05/08/2021 23:22:11.8568] DOT11_DRV[1]: Stop Radio1 - End
[*05/08/2021 23:22:11.8575] DOT11_DRV[0]: Stop Radio0 - Begin
[*05/08/2021 23:22:11.8622] DOT11_DRV[0]: Stop Radio0 - End
[*05/08/2021 23:22:11.8896]
[*05/08/2021 23:22:11.8896] CAPWAP State: Run
[*05/08/2021 23:22:11.9314] AP has joined controller C9800_170501
[*05/08/2021 23:22:12.2636] Previous AP mode is 0, change to 0
[*05/08/2021 23:22:12.3892] chpasswd: password for user changed
[*05/08/2021 23:22:12.5178]
[*05/08/2021 23:22:12.5178] Same LSC mode, no action needed
[*05/08/2021 23:22:12.8127] Got WSA Server config TLVs
[*05/08/2021 23:22:14.8003] AP tag change to default-policy-tag
[*05/08/2021 23:22:14.8659] flags value is 1
[*05/08/2021 23:22:15.1786] Powering down BLE radio
[*05/08/2021 23:22:15.5620] DOT11_CFG[0]: Stop slot 0 radio since no external DART antenna connected
[*05/08/2021 23:22:15.5762] DOT11_CFG[1]: Stop slot 1 radio since no external DART antenna connected
[*05/08/2021 23:25:42.7120] set cleanair [slot0][band0] enabled
[*05/08/2021 23:25:42.7166] set cleanair [slot1][band1] enabled
[*05/08/2021 23:25:43.8404] CLEANAIR: Slot 0 enabled
[*05/08/2021 23:25:47.6731] CLEANAIR: Slot 0 config change
[*05/08/2021 23:25:47.6735] CLEANAIR: Slot 1 channel change chk
[*05/08/2021 23:26:03.9218] CLEANAIR: Slot 0 enabled
[*05/09/2021 00:16:24.4894] Re-Tx Count=1, Max Re-Tx Value=5, SendSeqNum=85, NumofPendingMsgs=1
[*05/09/2021 00:16:24.4894]

[Leo Laohoo]

DART? 
What exactly is the model of the AP?  9130axe?

[Leo Laohoo]

Is the AP in Spectrum/Monitor mode?

[interfacedy]

Thank you Leo. Its C9130AXE-B. and its in local mode. but the mode can be changed any time 

[Leo Laohoo]

Are there any recommended antennas attached?

[interfacedy]

---

So far, not yet. It might be mistake. 

[marce1000]

 - Make sure cisco branded and dart supporting antenna's get installed

 M.

[interfacedy]

Finally I confirmed the status down is not related with antenna(ap is c9130axe, it needs antenna). After resetting to factory and reset, it is up. but if we do not reset, it is possible to let it up? in another word, is this configuration issue or something else? 

[Leo Laohoo · Accepted solution]

It could be a bug.  I mean, after all, the AP is running 17.5.1 firmware.

[interfacedy]

Thank you all!

[Rich R]

- That is not a full boot log because there's no mention of power negotiation.

- Your screenshot shows you're running it at 15.4W so at best you will get 1x1 on both bands - complete waste of a 9130. 

- You need minimum 25.5W POE+ with USB disabled to get 4x4 and 8x8 or 30.5W UPOE if you want 4x4 + 8x8 + USB.

[interfacedy]

---

@Rich R wrote:

- Your screenshot shows you're running it at 15.4W so at best you will get 1x1 on both bands - complete waste of a 9130. 

How do you know its at 15.4W based on the screenshot? Thanks